doc(play/aws-disk-bench): add AWS disk benchmark on Kube

[mtulio]

Document steps to benchmark AWS EBS volumes on OCP.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
labs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 7, 2025 5:42am
mtuliolabs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 7, 2025 5:42am

[Copilot]

Pull Request Overview

Adds a new guide to benchmark AWS disks on OpenShift by updating the site navigation and introducing a detailed playbook.

• Registers “Benchmark AWS disks on OCP” in the MkDocs navigation.
• Adds ocp-aws-disk-benchmark.md with steps to create MachineConfigs/MachineSets and run FIO tests.
• Covers benchmarking for ephemeral, gp2, gp3, io1, and io2 disk types.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
mkdocs.yml	Added nav entry for the AWS disk benchmark guide
docs/playbooks/openshift/ocp-aws-disk-benchmark.md	New playbook with setup and FIO benchmarking workflow

Comments suppressed due to low confidence (2)

docs/playbooks/openshift/ocp-aws-disk-benchmark.md:1

• The title only mentions ephemeral disks but the guide covers gp2, gp3, io1, and io2 as well. Consider updating it to reflect all tested disk types, e.g., "OCP on AWS - Benchmarking Ephemeral and EBS Disk Types".

# OCP on AWS - Using Instance Disks for Ephemeral Storage

docs/playbooks/openshift/ocp-aws-disk-benchmark.md:212

• This sets m6id.xlarge for the ephemeral test, but earlier you recommended c6id.xlarge as an example. Ensure the instance type is intentional or align with the documented example.

export INSTANCE_TYPE="m6id.xlarge"

[Copilot]

[nitpick] You mix DISK_TYPE (uppercase) and disk_type (lowercase) environment variables. It’s clearer to use one consistent naming convention for the label and variable throughout.

Suggested change

	oc get node -l disk_type=ephemeral -w
	```
	Make sure the device has been mounted correctly to the mount path `/var/lib/containers`:
	```bash
	oc debug node/$(oc get nodes -l disk_type=${disk_type} -o jsonpath='{.items[0].metadata.name}') -- chroot /host /bin/bash -c "df -h /var/lib/containers"
	oc get node -l DISK_TYPE=ephemeral -w

Make sure the device has been mounted correctly to the mount path /var/lib/containers:

oc debug node/$(oc get nodes -l DISK_TYPE=${DISK_TYPE} -o jsonpath='{.items[0].metadata.name}') -- chroot /host /bin/bash -c "df -h /var/lib/containers"

[mtulio]

incorrect suggestion